The PH domain in the ArfGAP ASAP1 drives catalytic activation through an unprecedented allosteric mechanism
Olivier Soubias, Samuel L. Foley, Xiaoying Jian, Rebekah A. Jackson, Yue Zhang, Eric Rosenberg, Benjamin J. Hu, Jess Li, Frank Heinrich, Margaret E. Johnson, Alexander J. Sodt, Paul A. Randazzo, R. Andrew Byrd
The study reveals an allosteric mechanism by which the PH domain of ASAP1 enhances Arf1 GTPase activity through structural and dynamic interactions on a membrane surface.
Nature Communications · Sep 30, 2025Peer-reviewedBiochemistry